Home / 17,109.64-23,603.16-11,139.10

Finding the Fourth Proportional to 17,109.64, 23,603.16 and 11,139.10

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Solution

The fourth proportional to 17,109.64, 23,603.16 and 11,139.10 is: 15,366.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,109.64 : 23,603.16 = 11,139.10 : x
  2. Step 2: Convert to fraction form
    17,109.64/23,603.16 = 11,139.10/x
  3. Step 3: Cross multiply
    17,109.64x = 23,603.16 × 11,139.10
  4. Step 4: Simplify right side
    17,109.64x = 262,917,959.56
  5. Step 5: Solve for x
    x = 262,917,959.56/17,109.64
  6. Step 6: Final answer
    x = 15,366.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.